Brake-head.



To all whom it may] concern: I

SAES AET FFICE.

GEORGE A. BOWMAN AND CYRUS L. HARMEYER, 0F FORT WAYNE, INDIANA.

BRAKE-REA ID.

Be it known that we, GEORGE A. BOWMAN and CYRUS L. HARMnYEn, citizens ofthe United States, residing at Fort Wayne, in the county of Allen andState of Indiana, have invented a certain new and useful Improvement inBrake-Heads, of which the following is a description.

The invention relates to new and useful improvements in brake-heads, andparticularly to an improvement upon the brake head described in ourformer Patent No. 901,872, granted October 20, 1908. In the latterpatent we describe a head consisting of a thrust block adapted to besecured to a brake beam. The brake head is divisible so that if one headmember becomes worn the worn part only is removed and replaced by aduplicate;

The two head members are each provided with atenon which is insertiblein an opening or recess provided in the thrust block, and are removablysecured to the block by a pin which is passed through a verticalopeningin the block and through openings in the tenons. The assembleddevice is supported from the vehicle by a hanger which is engaged in aslot or recess provided in the forward face of the block and between theadjacent ends of the heads. The shoe prevents the disengagement of thehanger from the block. The disadvantage of this method of support forthe device is that there is no means provided on the thrust block toprevent the disengagement of the hanger from the block when the shoe isremoved or drops off the head members or when the upper member of thehead is removed. In substituting a new shoe or head member or in case ofthe loss of a shoe it is desirable that the thrust block shall remain inpositionthat the beam and block shall not fall down and thereby endangerthe train or delay the repair of the device.

The object of our invention is to provide a novel means for connectingthe thrust block to the hanger to insure their unauthorized separation.

In the drawings we illustrate the preferred manner of carrying out ourinvention in which- Figure 1 is a side elevational view of the assembleddevice attached to the hanger according to our invention; Fig. 2 a frontelevational view of the same, the upper head App1ication filed. July 22,1915.

' Specification of Letters Patent. Patented WIar. 21, 1916 Serial No.41,237.

member being removed; Fig. 3 a vertical section on line 38 of Fig. 1 andFig. 4 a side elevational view of one of the head members.

Referring to the drawings the rear portion of thrust block 10 isapertured in any desired form, as aperture 11, so that it may be engagedon the end of the brake beam. Two suitably spaced apertures or recesses12 are provided in the front portion of the block, the apertures openingat the forward face of the block. A slot or recess 13 is also providedin the block preferably above apertures 12 and extends transverselyentirely across the block for the reception of hanger 14. A verticalopening or key way 15 intersects the hanger slot and both apertures 12.Two brake head members 16,having tenons 17 projecting from their rearfaces and apertured bosses 18 projecting from their opposite faces areadapted to be secured to the block, the tenons being inserted inapertures 12. The apertured bosses 18 serve as means for securing theusual shoe to the head members by a key. Each tenon has a verticalopening 19 which, when the tenons are properly inserted in recesses orapertures 12 will register with each other and with key wav 15. Theheads 16 being assembled on the block. and han er 14 being inserted intoslot 13 and beyond key way 15, pin 20 is inserted into key way 15 andpassed through slot 13 in front of the hanger and through the aperturesin the tenons. The pin, therefore, not only secures the brake headmembers to the block but also retains the hanger within the slot in theblock. The pin need not be removed to replace a shoe, and to remove aworn out head member and substitute a new one the pin need only beelevated sufliciently to release the tenon of the head member to beremoved. The thrust block is, therefore. at all times suspended from thevehicle. provided of course, the hanger itself remains uniniured.

What we claim is:

1. The combination with a thrust block having two recesses therein, aslot extending 7 the aliriing apertures in the brake head and therecesses and the slot afh anger in the 10 extending across the slotfin'front of the slot, two brake head members having aperhanger. turecltenons projecting into the recesses and 2."The' c0ii1biiiati0ri'tvith athrust block a'key extending acrcss'the slot in front of for attachmentto a brake beam, having a the hanger; V

pluralitv of transversely arranged recesses, In Witness whe'reofwehereunto subscribe 15 a slot extending transversely of the same ournames this 15th day of July,, 1915. and-the block having a verticallyarranged GEORGE A. BQWMAN-M key way therein Which-intersects eachof:GYRUS L. HARMEYER.

. (lopi es ot this patent may be obtained forfive cents each, byaddressing the -Gommissioner of Patents, R washington nc. Y i e

